diff options
| author | Sean Young <sean@mess.org> | 2016-11-10 17:44:49 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-11-18 10:48:34 +0100 |
| commit | 2f7496c48a7b0df262ff7081e377b73845cd31c8 (patch) | |
| tree | b1404ed9290537026c2133e540c4e2fececf0cdc | |
| parent | a0476902938650cf33ebcaf2db1a2d291ca25dcd (diff) | |
| download | lwn-2f7496c48a7b0df262ff7081e377b73845cd31c8.tar.gz lwn-2f7496c48a7b0df262ff7081e377b73845cd31c8.zip | |
dib0700: fix nec repeat handling
commit ba13e98f2cebd55a3744c5ffaa08f9dca73bf521 upstream.
When receiving a nec repeat, ensure the correct scancode is repeated
rather than a random value from the stack. This removes the need for
the bogus uninitialized_var() and also fixes the warnings:
drivers/media/usb/dvb-usb/dib0700_core.c: In function ‘dib0700_rc_urb_completion’:
drivers/media/usb/dvb-usb/dib0700_core.c:679: warning: ‘protocol’ may be used uninitialized in this function
[sean addon: So after writing the patch and submitting it, I've bought the
hardware on ebay. Without this patch you get random scancodes
on nec repeats, which the patch indeed fixes.]
Signed-off-by: Sean Young <sean@mess.org>
Tested-by: Sean Young <sean@mess.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/media/usb/dvb-usb/dib0700_core.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/media/usb/dvb-usb/dib0700_core.c b/drivers/media/usb/dvb-usb/dib0700_core.c index 0d248ce02a9b..ab58f0b9da5c 100644 --- a/drivers/media/usb/dvb-usb/dib0700_core.c +++ b/drivers/media/usb/dvb-usb/dib0700_core.c @@ -677,7 +677,7 @@ static void dib0700_rc_urb_completion(struct urb *purb) struct dvb_usb_device *d = purb->context; struct dib0700_rc_response *poll_reply; enum rc_type protocol; - u32 uninitialized_var(keycode); + u32 keycode; u8 toggle; deb_info("%s()\n", __func__); @@ -719,7 +719,8 @@ static void dib0700_rc_urb_completion(struct urb *purb) poll_reply->nec.data == 0x00 && poll_reply->nec.not_data == 0xff) { poll_reply->data_state = 2; - break; + rc_repeat(d->rc_dev); + goto resubmit; } if ((poll_reply->nec.data ^ poll_reply->nec.not_data) != 0xff) { |